PORSCHE RACING HISTORYJohn Hotchkis Jr. (USA)
1980
3 February 1980 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 Carrera RSR | 911 360 0601 | GTO | Robert Kirby (USA)/John Hotchkis (USA)/John Hotchkis Jr. (USA) | Moana Corp. | 55th | 21st | 61st | 147 laps - DNF |
26 May 1980 - Lime Rock 1.5 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 Carrera RSR | 911 360 0601 | GTO | John Hotchkis (USA)/John Hotchkis Jr. (USA) | Kirby-Hitchcock Racing | 11th | 7th | 16th | 80 laps |